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How much does a beauty product’s ingredient list really tell you?

When researching a new beauty product, one of the first things we do is look at its ingredient list. What, if anything, does this long collection of scientific jargon really tell us? Many of us use this list to help assess whether or not a formula can meet our needs, but according to a cosmetic chemist and FanLoveBeauty founder Ginger King and board-certified dermatologist and beauty chemist Alexis Stephens, MD, this isn’t the best way to determine a product’s efficacy.

Ingredient lists offer a limited amount of information

A beauty product’s ingredient list outlines the active and inactive agents in a product, says Dr Stephens; you should use it to make informed decisions on the formula’s safety and efficacy (and to identify and avoid any known allergens). Those active ingredients, which have been approved by the US Food and Drug Administration, should have their functions and concentrations outlined on the packaging, she adds. As for the list itself? King explains that the first five ingredients listed are in the order of formulaic concentration. After that fifth one, she says, the brand can list ingredients by any order, followed by preservatives, fragrance, and dyes. The main reason why it’s critical to read an ingredient list with a grain of salt? “It does not tell you how well one ingredient will interact with another,” stresses Dr Stephens, who ultimately recommends “choosing products formulated and tested by reputable brands” instead of making beauty-related decisions by way of a list.

beauty products ingredients
Image: Courtesy Content Pixie/Unsplash

Trying (or patch testing) the product is the only way to know if it works

There’s no way to truly know if a product will improve your complexion unless you physically try it for at least two weeks, says King (most of the clinical research you see products advertised are performed in four weeks’ time, she notes). “The best way to know if a product will work on your skin is to use it with consistency,” adds Dr Stephens. The same can be said of the inverse—the ingredients that don’t benefit your skin, and lead to irritation or allergies, will often take around the same amount of time to identify. To minimise irritation, Dr Stephens recommends starting with a small patch test to make sure the product won’t cause sensitivity before you apply the product all over your face or body.

This story first appeared on www.marthastewart.com

Hero and Feature Image: Courtesy Westend61 / Getty Images

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